Chiral ligand metal complex catalyst system, and its preparation method and use

A metal complex, catalytic system technology, applied in the direction of organic compound/hydride/coordination complex catalyst, catalytic reaction, physical/chemical process catalyst, etc., can solve the narrow application scope and limited application of ligand substrates problem, to achieve the effect of low synthesis cost, wide application range and easy operation
CN1579627AInactive Publication Date: 2005-02-16DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2005-02-16
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to chirality phosphine ligand metal complex catalyse system, which is composed by complex formed by ligand and metal Rh, Ru, Ir, Pt or Pd or ligand and metal precursor in of 1-2 mol ratio. The phosphine ligand is a kind of effective chirality phosphate ligand composed by D-mannitol or L-mannitol after reaction. The catalyst composed by the chirality ligand and rhodium metallic compound in asymmetry hydrogenation reaction can work in room temperature. With a wide applied range, catalyst's activation and stereoselectivity is not influenced from normal pressure to high pressure. Reaction time is 1-24 hours. Mol ratio of ligand and metal rhodium compound is 1:1-2:1. Ratio of reactant and catalyst is 100-10,000.
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Description

technical field

[0001] The invention relates to a chiral ligand metal complex catalytic system;

[0002] The present invention also relates to the preparation method of the above-mentioned catalytic system;

[0003] The present invention also relates to the use of the above-mentioned catalytic system in asymmetric hydrogenation reactions. Background technique

[0004] Catalytic asymmetric hydrogenation is the core technology in asymmetric synthesis and one of the most effective methods for synthesizing optically pure chiral drugs, pesticides, food additives, and spices, and the design and synthesis of chiral ligands is the key to realizing this core technology factor. At present, many chiral bidentate phosphine ligands have been developed one after another. However, most of the ligands are difficult to synthesize, have poor stability, and are expensive to synthesize and cannot be applied to industrial production. Therefore, they have been successfully applied to industrial...

Claims

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